[4] Kereru-Symes hails from Māhia, in the Hawke's Bay region on the east coast of New Zealand's North Island.
He started at loosehead prop for Hastings Boys' in their first National Top 4 final against Mount Albert Grammar School in 2016, but had to leave the field with a suspected concussion after 15 minutes.
[8] In 2017, he captained the team to a National Top 4 victory, beating Hamilton Boys' High School 25 to 17 in the final after an undefeated season.
[26] He made his Super Rugby debut three days later, on Tuesday 12 April 2022, when he started for the Hurricanes against Moana Pasifika.
[27] On 9 January 2023, the New England Free Jacks announced the signing of Kereru-Symes ahead of the 2023 Major League Rugby season.
[28] On 9 July 2023, he started at loosehead prop for the New England Free Jacks in their Major League Rugby final against San Diego Legion.
[29] In 2024, once again, Kereru-Symes was called into the Hurricanes squad as an injury replacement player and played his first game of the season as the starting hooker against the Waratahs on 3 May 2024.